if you want to clear all, just load a base tile (delete and load a single tile) then Set All
Add checkbox to flip between snap / no-snap
Add click to map preview to load that acre Move map+viewport-reticle bitmap creation to drawing project export map without reticle as scale=1
most complex editor yet could be better if I did PictureBox'es instead of buttons, so I could put an image instead of just color ppl will have to document more on what each terrain looks like, maybe could show a pic of each terrain tile?